diff options
Diffstat (limited to 'c/src/lib/libbsp/i960/rxgen960/console/console.c')
| -rw-r--r-- | c/src/lib/libbsp/i960/rxgen960/console/console.c | 264 |
1 files changed, 264 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/i960/rxgen960/console/console.c b/c/src/lib/libbsp/i960/rxgen960/console/console.c new file mode 100644 index 0000000000..d62e96869d --- /dev/null +++ b/c/src/lib/libbsp/i960/rxgen960/console/console.c @@ -0,0 +1,264 @@ +/* + * This file contains the template for a console IO package. + * + * COPYRIGHT (c) 1989-1997. + * On-Line Applications Research Corporation (OAR). + * Copyright assigned to U.S. Government, 1994. + * + * The license and distribution terms for this file may in + * the file LICENSE in this distribution or at + * http://www.OARcorp.com/rtems/license.html. + * + * $Id$ + */ + +#define NO_BSP_INIT + + +/* only one of the following can be defined */ +#define SERIAL_INPUT /* use serial input */ + +#include <bsp.h> +#include <rtems/libio.h> +#include "concntl.h" +#include "pcimsgreg.h" + +#ifndef lint +static char _sccsid[] = "@(#)console.c 09/12/96 1.13\n"; +#endif + +/* console_initialize + * + * This routine initializes the console IO driver. + * + * Input parameters: NONE + * + * Output parameters: NONE + * + * Return values: + */ + +rtems_device_driver console_initialize( + rtems_device_major_number major, + rtems_device_minor_number minor, + void *arg +) +{ + rtems_status_code status; + + if ( console_pmr_init(*(unsigned32*)arg) ) + return RTEMS_INVALID_NUMBER; + + + status = rtems_io_register_name( + "/dev/console", + major, + (rtems_device_minor_number) 0 + ); + + if (status != RTEMS_SUCCESSFUL) + rtems_fatal_error_occurred(status); + + return RTEMS_SUCCESSFUL; +} + + +/* is_character_ready + * + * This routine returns TRUE if a character is available. + * + * Input parameters: NONE + * + * Output parameters: NONE + * + * Return values: + */ + +rtems_boolean is_character_ready( + char *ch +) +{ + *ch = '\0'; /* return NULL for no particular reason */ + return(console_pmr_kbhit()); +} + +/* inbyte + * + * This routine reads a character from the SOURCE. + * + * Input parameters: NONE + * + * Output parameters: NONE + * + * Return values: + * character read from SOURCE + */ + +char inbyte( unsigned int minor ) +{ + /* + * If polling, wait until a character is available. + */ + return console_pmr_getc(); +} + +/* outbyte + * + * This routine transmits a character out the SOURCE. It may support + * XON/XOFF flow control. + * + * Input parameters: + * ch - character to be transmitted + * + * Output parameters: NONE + */ + +void outbyte( unsigned int minor, + char ch +) +{ + console_pmr_putc( ch ); + + /* + * Carriage Return/New line translation. + */ + + if ( ch == '\n' ) + outbyte( minor, '\r' ); +} + + +/* + * Open entry point + */ + +rtems_device_driver console_open( + rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg +) +{ + return RTEMS_SUCCESSFUL; +} + +/* + * Close entry point + */ + +rtems_device_driver console_close( + rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg +) +{ + return RTEMS_SUCCESSFUL; +} + +/* + * read bytes from the serial port. We only have stdin. + */ + +rtems_device_driver console_read( + rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg +) +{ + rtems_libio_rw_args_t *rw_args; + unsigned8 *buffer; + unsigned32 maximum; + unsigned32 count = 0; + + rw_args = (rtems_libio_rw_args_t *) arg; + + buffer = rw_args->buffer; + maximum = rw_args->count; + + for (count = 0; count < maximum; count++) { + buffer[ count ] = inbyte(minor); + if (buffer[ count ] == '\n' || buffer[ count ] == '\r') { + buffer[ count++ ] = '\n'; + buffer[ count ] = 0; + outbyte( minor, '\n' ); /* newline */ + break; + } + else if (buffer[ count ] == '\b' && count > 0 ) + { + outbyte( minor, '\b' ); /* move back one space */ + outbyte( minor, ' ' ); /* erase the character */ + outbyte( minor, '\b' ); /* move back one space */ + count-=2; + } + else + outbyte( minor, buffer[ count ] ); /* echo the character */ + } + + rw_args->bytes_moved = count; + return (count > 0) ? RTEMS_SUCCESSFUL : RTEMS_UNSATISFIED; +} + +/* + * write bytes to the serial port. Stdout and stderr are the same. + */ + +rtems_device_driver console_write( + rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg +) +{ + int count; + int maximum; + rtems_libio_rw_args_t *rw_args; + unsigned8 *buffer; + + rw_args = (rtems_libio_rw_args_t *) arg; + + buffer = rw_args->buffer; + maximum = rw_args->count; + + for (count = 0; count < maximum; count++) { + if ( buffer[ count ] == '\n') { + outbyte(minor,'\r'); + } + outbyte( minor,buffer[ count ] ); + } + + rw_args->bytes_moved = maximum; + return 0; +} + +/* + * IO Control entry point + */ + +rtems_device_driver console_control( + rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg +) +{ + if (!arg) + return RTEMS_INVALID_ADDRESS; + + switch( ((console_ioctl_request_t *)arg)->ioctl_type ) + { + case CON_KBHIT: + /* check if keyboard was hit */ + ((console_ioctl_request_t *)arg)->param = console_pmr_kbhit(); + break; + + case CON_GET_RAW_BYTE: + ((console_ioctl_request_t *)arg)->param = inbyte(minor); + break; + + case CON_SEND_RAW_BYTE: + outbyte(minor, ((console_ioctl_request_t *)arg)->param); + break; + + default: + break; + } + + return RTEMS_SUCCESSFUL; +} |